1*7c478bd9Sstevel@tonic-gate /* 2*7c478bd9Sstevel@tonic-gate * Copyright 1997-2002 Sun Microsystems, Inc. All rights reserved. 3*7c478bd9Sstevel@tonic-gate * Use is subject to license terms. 4*7c478bd9Sstevel@tonic-gate */ 5*7c478bd9Sstevel@tonic-gate 6*7c478bd9Sstevel@tonic-gate /* 7*7c478bd9Sstevel@tonic-gate * Copyright (c) 1989, 1993, 1995 8*7c478bd9Sstevel@tonic-gate * The Regents of the University of California. All rights reserved. 9*7c478bd9Sstevel@tonic-gate * 10*7c478bd9Sstevel@tonic-gate * Redistribution and use in source and binary forms, with or without 11*7c478bd9Sstevel@tonic-gate * modification, are permitted provided that the following conditions 12*7c478bd9Sstevel@tonic-gate * are met: 13*7c478bd9Sstevel@tonic-gate * 1. Redistributions of source code must retain the above copyright 14*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer. 15*7c478bd9Sstevel@tonic-gate * 2. Redistributions in binary form must reproduce the above copyright 16*7c478bd9Sstevel@tonic-gate * notice, this list of conditions and the following disclaimer in the 17*7c478bd9Sstevel@tonic-gate * documentation and/or other materials provided with the distribution. 18*7c478bd9Sstevel@tonic-gate * 3. All advertising materials mentioning features or use of this software 19*7c478bd9Sstevel@tonic-gate * must display the following acknowledgement: 20*7c478bd9Sstevel@tonic-gate * This product includes software developed by the University of 21*7c478bd9Sstevel@tonic-gate * California, Berkeley and its contributors. 22*7c478bd9Sstevel@tonic-gate * 4. Neither the name of the University nor the names of its contributors 23*7c478bd9Sstevel@tonic-gate * may be used to endorse or promote products derived from this software 24*7c478bd9Sstevel@tonic-gate * without specific prior written permission. 25*7c478bd9Sstevel@tonic-gate * 26*7c478bd9Sstevel@tonic-gate * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27*7c478bd9Sstevel@tonic-gate * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28*7c478bd9Sstevel@tonic-gate * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29*7c478bd9Sstevel@tonic-gate * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30*7c478bd9Sstevel@tonic-gate * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31*7c478bd9Sstevel@tonic-gate * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32*7c478bd9Sstevel@tonic-gate * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33*7c478bd9Sstevel@tonic-gate * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34*7c478bd9Sstevel@tonic-gate * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35*7c478bd9Sstevel@tonic-gate * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36*7c478bd9Sstevel@tonic-gate * SUCH DAMAGE. 37*7c478bd9Sstevel@tonic-gate */ 38*7c478bd9Sstevel@tonic-gate 39*7c478bd9Sstevel@tonic-gate /* 40*7c478bd9Sstevel@tonic-gate * Portions Copyright (c) 1996-1999 by Internet Software Consortium. 41*7c478bd9Sstevel@tonic-gate * 42*7c478bd9Sstevel@tonic-gate * Permission to use, copy, modify, and distribute this software for any 43*7c478bd9Sstevel@tonic-gate * purpose with or without fee is hereby granted, provided that the above 44*7c478bd9Sstevel@tonic-gate * copyright notice and this permission notice appear in all copies. 45*7c478bd9Sstevel@tonic-gate * 46*7c478bd9Sstevel@tonic-gate * THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM DISCLAIMS 47*7c478bd9Sstevel@tonic-gate * ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES 48*7c478bd9Sstevel@tonic-gate * OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL INTERNET SOFTWARE 49*7c478bd9Sstevel@tonic-gate * CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL 50*7c478bd9Sstevel@tonic-gate * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR 51*7c478bd9Sstevel@tonic-gate * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 52*7c478bd9Sstevel@tonic-gate * ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 53*7c478bd9Sstevel@tonic-gate * SOFTWARE. 54*7c478bd9Sstevel@tonic-gate */ 55*7c478bd9Sstevel@tonic-gate 56*7c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 57*7c478bd9Sstevel@tonic-gate 58*7c478bd9Sstevel@tonic-gate #if defined(LIBC_SCCS) && !defined(lint) 59*7c478bd9Sstevel@tonic-gate static const char rcsid[] = "$Id: lcl_sv.c,v 1.22 2001/06/18 14:43:59 marka Exp $"; 60*7c478bd9Sstevel@tonic-gate #endif /* LIBC_SCCS and not lint */ 61*7c478bd9Sstevel@tonic-gate 62*7c478bd9Sstevel@tonic-gate /* extern */ 63*7c478bd9Sstevel@tonic-gate 64*7c478bd9Sstevel@tonic-gate #include "port_before.h" 65*7c478bd9Sstevel@tonic-gate 66*7c478bd9Sstevel@tonic-gate #include <sys/types.h> 67*7c478bd9Sstevel@tonic-gate #include <sys/socket.h> 68*7c478bd9Sstevel@tonic-gate #include <netinet/in.h> 69*7c478bd9Sstevel@tonic-gate #include <arpa/nameser.h> 70*7c478bd9Sstevel@tonic-gate #include <resolv.h> 71*7c478bd9Sstevel@tonic-gate 72*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 73*7c478bd9Sstevel@tonic-gate #include <db.h> 74*7c478bd9Sstevel@tonic-gate #endif 75*7c478bd9Sstevel@tonic-gate #include <errno.h> 76*7c478bd9Sstevel@tonic-gate #include <fcntl.h> 77*7c478bd9Sstevel@tonic-gate #include <limits.h> 78*7c478bd9Sstevel@tonic-gate #include <stdio.h> 79*7c478bd9Sstevel@tonic-gate #include <string.h> 80*7c478bd9Sstevel@tonic-gate #include <stdlib.h> 81*7c478bd9Sstevel@tonic-gate 82*7c478bd9Sstevel@tonic-gate #include <irs.h> 83*7c478bd9Sstevel@tonic-gate #include <isc/memcluster.h> 84*7c478bd9Sstevel@tonic-gate 85*7c478bd9Sstevel@tonic-gate #include "port_after.h" 86*7c478bd9Sstevel@tonic-gate 87*7c478bd9Sstevel@tonic-gate #include "irs_p.h" 88*7c478bd9Sstevel@tonic-gate #include "lcl_p.h" 89*7c478bd9Sstevel@tonic-gate 90*7c478bd9Sstevel@tonic-gate #ifdef SPRINTF_CHAR 91*7c478bd9Sstevel@tonic-gate # define SPRINTF(x) strlen(sprintf/**/x) 92*7c478bd9Sstevel@tonic-gate #else 93*7c478bd9Sstevel@tonic-gate # define SPRINTF(x) ((size_t)sprintf x) 94*7c478bd9Sstevel@tonic-gate #endif 95*7c478bd9Sstevel@tonic-gate 96*7c478bd9Sstevel@tonic-gate /* Types */ 97*7c478bd9Sstevel@tonic-gate 98*7c478bd9Sstevel@tonic-gate struct pvt { 99*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 100*7c478bd9Sstevel@tonic-gate DB * dbh; 101*7c478bd9Sstevel@tonic-gate int dbf; 102*7c478bd9Sstevel@tonic-gate #endif 103*7c478bd9Sstevel@tonic-gate struct lcl_sv sv; 104*7c478bd9Sstevel@tonic-gate }; 105*7c478bd9Sstevel@tonic-gate 106*7c478bd9Sstevel@tonic-gate /* Forward */ 107*7c478bd9Sstevel@tonic-gate 108*7c478bd9Sstevel@tonic-gate static void sv_close(struct irs_sv*); 109*7c478bd9Sstevel@tonic-gate static struct servent * sv_next(struct irs_sv *); 110*7c478bd9Sstevel@tonic-gate static struct servent * sv_byname(struct irs_sv *, const char *, 111*7c478bd9Sstevel@tonic-gate const char *); 112*7c478bd9Sstevel@tonic-gate static struct servent * sv_byport(struct irs_sv *, int, const char *); 113*7c478bd9Sstevel@tonic-gate static void sv_rewind(struct irs_sv *); 114*7c478bd9Sstevel@tonic-gate static void sv_minimize(struct irs_sv *); 115*7c478bd9Sstevel@tonic-gate /*global*/ struct servent * irs_lclsv_fnxt(struct lcl_sv *); 116*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 117*7c478bd9Sstevel@tonic-gate static struct servent * sv_db_rec(struct lcl_sv *, DBT *, DBT *); 118*7c478bd9Sstevel@tonic-gate #endif 119*7c478bd9Sstevel@tonic-gate 120*7c478bd9Sstevel@tonic-gate /* Portability */ 121*7c478bd9Sstevel@tonic-gate 122*7c478bd9Sstevel@tonic-gate #ifndef SEEK_SET 123*7c478bd9Sstevel@tonic-gate # define SEEK_SET 0 124*7c478bd9Sstevel@tonic-gate #endif 125*7c478bd9Sstevel@tonic-gate 126*7c478bd9Sstevel@tonic-gate /* Public */ 127*7c478bd9Sstevel@tonic-gate 128*7c478bd9Sstevel@tonic-gate struct irs_sv * 129*7c478bd9Sstevel@tonic-gate irs_lcl_sv(struct irs_acc *this) { 130*7c478bd9Sstevel@tonic-gate struct irs_sv *sv; 131*7c478bd9Sstevel@tonic-gate struct pvt *pvt; 132*7c478bd9Sstevel@tonic-gate 133*7c478bd9Sstevel@tonic-gate UNUSED(this); 134*7c478bd9Sstevel@tonic-gate 135*7c478bd9Sstevel@tonic-gate if ((sv = memget(sizeof *sv)) == NULL) { 136*7c478bd9Sstevel@tonic-gate errno = ENOMEM; 137*7c478bd9Sstevel@tonic-gate return (NULL); 138*7c478bd9Sstevel@tonic-gate } 139*7c478bd9Sstevel@tonic-gate memset(sv, 0x5e, sizeof *sv); 140*7c478bd9Sstevel@tonic-gate if ((pvt = memget(sizeof *pvt)) == NULL) { 141*7c478bd9Sstevel@tonic-gate memput(sv, sizeof *sv); 142*7c478bd9Sstevel@tonic-gate errno = ENOMEM; 143*7c478bd9Sstevel@tonic-gate return (NULL); 144*7c478bd9Sstevel@tonic-gate } 145*7c478bd9Sstevel@tonic-gate memset(pvt, 0, sizeof *pvt); 146*7c478bd9Sstevel@tonic-gate sv->private = pvt; 147*7c478bd9Sstevel@tonic-gate sv->close = sv_close; 148*7c478bd9Sstevel@tonic-gate sv->next = sv_next; 149*7c478bd9Sstevel@tonic-gate sv->byname = sv_byname; 150*7c478bd9Sstevel@tonic-gate sv->byport = sv_byport; 151*7c478bd9Sstevel@tonic-gate sv->rewind = sv_rewind; 152*7c478bd9Sstevel@tonic-gate sv->minimize = sv_minimize; 153*7c478bd9Sstevel@tonic-gate sv->res_get = NULL; 154*7c478bd9Sstevel@tonic-gate sv->res_set = NULL; 155*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 156*7c478bd9Sstevel@tonic-gate pvt->dbf = R_FIRST; 157*7c478bd9Sstevel@tonic-gate #endif 158*7c478bd9Sstevel@tonic-gate return (sv); 159*7c478bd9Sstevel@tonic-gate } 160*7c478bd9Sstevel@tonic-gate 161*7c478bd9Sstevel@tonic-gate /* Methods */ 162*7c478bd9Sstevel@tonic-gate 163*7c478bd9Sstevel@tonic-gate static void 164*7c478bd9Sstevel@tonic-gate sv_close(struct irs_sv *this) { 165*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 166*7c478bd9Sstevel@tonic-gate 167*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 168*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) 169*7c478bd9Sstevel@tonic-gate (*pvt->dbh->close)(pvt->dbh); 170*7c478bd9Sstevel@tonic-gate #endif 171*7c478bd9Sstevel@tonic-gate if (pvt->sv.fp) 172*7c478bd9Sstevel@tonic-gate fclose(pvt->sv.fp); 173*7c478bd9Sstevel@tonic-gate memput(pvt, sizeof *pvt); 174*7c478bd9Sstevel@tonic-gate memput(this, sizeof *this); 175*7c478bd9Sstevel@tonic-gate } 176*7c478bd9Sstevel@tonic-gate 177*7c478bd9Sstevel@tonic-gate static struct servent * 178*7c478bd9Sstevel@tonic-gate sv_byname(struct irs_sv *this, const char *name, const char *proto) { 179*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 180*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 181*7c478bd9Sstevel@tonic-gate #endif 182*7c478bd9Sstevel@tonic-gate struct servent *p; 183*7c478bd9Sstevel@tonic-gate char **cp; 184*7c478bd9Sstevel@tonic-gate 185*7c478bd9Sstevel@tonic-gate sv_rewind(this); 186*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 187*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) { 188*7c478bd9Sstevel@tonic-gate DBT key, data; 189*7c478bd9Sstevel@tonic-gate 190*7c478bd9Sstevel@tonic-gate /* Note that (sizeof "/") == 2. */ 191*7c478bd9Sstevel@tonic-gate if ((strlen(name) + sizeof "/" + proto ? strlen(proto) : 0) 192*7c478bd9Sstevel@tonic-gate > sizeof pvt->sv.line) 193*7c478bd9Sstevel@tonic-gate goto try_local; 194*7c478bd9Sstevel@tonic-gate key.data = pvt->sv.line; 195*7c478bd9Sstevel@tonic-gate key.size = SPRINTF((pvt->sv.line, "%s/%s", name, 196*7c478bd9Sstevel@tonic-gate proto ? proto : "")) + 1; 197*7c478bd9Sstevel@tonic-gate if (proto != NULL) { 198*7c478bd9Sstevel@tonic-gate if ((*pvt->dbh->get)(pvt->dbh, &key, &data, 0) != 0) 199*7c478bd9Sstevel@tonic-gate return (NULL); 200*7c478bd9Sstevel@tonic-gate } else if ((*pvt->dbh->seq)(pvt->dbh, &key, &data, R_CURSOR) 201*7c478bd9Sstevel@tonic-gate != 0) 202*7c478bd9Sstevel@tonic-gate return (NULL); 203*7c478bd9Sstevel@tonic-gate return (sv_db_rec(&pvt->sv, &key, &data)); 204*7c478bd9Sstevel@tonic-gate } 205*7c478bd9Sstevel@tonic-gate try_local: 206*7c478bd9Sstevel@tonic-gate #endif 207*7c478bd9Sstevel@tonic-gate 208*7c478bd9Sstevel@tonic-gate while ((p = sv_next(this))) { 209*7c478bd9Sstevel@tonic-gate if (strcmp(name, p->s_name) == 0) 210*7c478bd9Sstevel@tonic-gate goto gotname; 211*7c478bd9Sstevel@tonic-gate for (cp = p->s_aliases; *cp; cp++) 212*7c478bd9Sstevel@tonic-gate if (strcmp(name, *cp) == 0) 213*7c478bd9Sstevel@tonic-gate goto gotname; 214*7c478bd9Sstevel@tonic-gate continue; 215*7c478bd9Sstevel@tonic-gate gotname: 216*7c478bd9Sstevel@tonic-gate if (proto == NULL || strcmp(p->s_proto, proto) == 0) 217*7c478bd9Sstevel@tonic-gate break; 218*7c478bd9Sstevel@tonic-gate } 219*7c478bd9Sstevel@tonic-gate return (p); 220*7c478bd9Sstevel@tonic-gate } 221*7c478bd9Sstevel@tonic-gate 222*7c478bd9Sstevel@tonic-gate static struct servent * 223*7c478bd9Sstevel@tonic-gate sv_byport(struct irs_sv *this, int port, const char *proto) { 224*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 225*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 226*7c478bd9Sstevel@tonic-gate #endif 227*7c478bd9Sstevel@tonic-gate struct servent *p; 228*7c478bd9Sstevel@tonic-gate 229*7c478bd9Sstevel@tonic-gate sv_rewind(this); 230*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 231*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) { 232*7c478bd9Sstevel@tonic-gate DBT key, data; 233*7c478bd9Sstevel@tonic-gate u_short *ports; 234*7c478bd9Sstevel@tonic-gate 235*7c478bd9Sstevel@tonic-gate ports = (u_short *)pvt->sv.line; 236*7c478bd9Sstevel@tonic-gate ports[0] = 0; 237*7c478bd9Sstevel@tonic-gate ports[1] = port; 238*7c478bd9Sstevel@tonic-gate key.data = ports; 239*7c478bd9Sstevel@tonic-gate key.size = sizeof(u_short) * 2; 240*7c478bd9Sstevel@tonic-gate if (proto && *proto) { 241*7c478bd9Sstevel@tonic-gate strncpy((char *)ports + key.size, proto, 242*7c478bd9Sstevel@tonic-gate BUFSIZ - key.size); 243*7c478bd9Sstevel@tonic-gate key.size += strlen((char *)ports + key.size) + 1; 244*7c478bd9Sstevel@tonic-gate if ((*pvt->dbh->get)(pvt->dbh, &key, &data, 0) != 0) 245*7c478bd9Sstevel@tonic-gate return (NULL); 246*7c478bd9Sstevel@tonic-gate } else { 247*7c478bd9Sstevel@tonic-gate if ((*pvt->dbh->seq)(pvt->dbh, &key, &data, R_CURSOR) 248*7c478bd9Sstevel@tonic-gate != 0) 249*7c478bd9Sstevel@tonic-gate return (NULL); 250*7c478bd9Sstevel@tonic-gate } 251*7c478bd9Sstevel@tonic-gate return (sv_db_rec(&pvt->sv, &key, &data)); 252*7c478bd9Sstevel@tonic-gate } 253*7c478bd9Sstevel@tonic-gate #endif 254*7c478bd9Sstevel@tonic-gate while ((p = sv_next(this))) { 255*7c478bd9Sstevel@tonic-gate if (p->s_port != port) 256*7c478bd9Sstevel@tonic-gate continue; 257*7c478bd9Sstevel@tonic-gate if (proto == NULL || strcmp(p->s_proto, proto) == 0) 258*7c478bd9Sstevel@tonic-gate break; 259*7c478bd9Sstevel@tonic-gate } 260*7c478bd9Sstevel@tonic-gate return (p); 261*7c478bd9Sstevel@tonic-gate } 262*7c478bd9Sstevel@tonic-gate 263*7c478bd9Sstevel@tonic-gate static void 264*7c478bd9Sstevel@tonic-gate sv_rewind(struct irs_sv *this) { 265*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 266*7c478bd9Sstevel@tonic-gate 267*7c478bd9Sstevel@tonic-gate if (pvt->sv.fp) { 268*7c478bd9Sstevel@tonic-gate if (fseek(pvt->sv.fp, 0L, SEEK_SET) == 0) 269*7c478bd9Sstevel@tonic-gate return; 270*7c478bd9Sstevel@tonic-gate (void)fclose(pvt->sv.fp); 271*7c478bd9Sstevel@tonic-gate pvt->sv.fp = NULL; 272*7c478bd9Sstevel@tonic-gate } 273*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 274*7c478bd9Sstevel@tonic-gate pvt->dbf = R_FIRST; 275*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) 276*7c478bd9Sstevel@tonic-gate return; 277*7c478bd9Sstevel@tonic-gate pvt->dbh = dbopen(_PATH_SERVICES_DB, O_RDONLY,O_RDONLY,DB_BTREE, NULL); 278*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) { 279*7c478bd9Sstevel@tonic-gate if (fcntl((*pvt->dbh->fd)(pvt->dbh), F_SETFD, 1) < 0) { 280*7c478bd9Sstevel@tonic-gate (*pvt->dbh->close)(pvt->dbh); 281*7c478bd9Sstevel@tonic-gate pvt->dbh = NULL; 282*7c478bd9Sstevel@tonic-gate } 283*7c478bd9Sstevel@tonic-gate return; 284*7c478bd9Sstevel@tonic-gate } 285*7c478bd9Sstevel@tonic-gate #endif 286*7c478bd9Sstevel@tonic-gate if ((pvt->sv.fp = fopen(_PATH_SERVICES, "r")) == NULL) 287*7c478bd9Sstevel@tonic-gate return; 288*7c478bd9Sstevel@tonic-gate if (fcntl(fileno(pvt->sv.fp), F_SETFD, 1) < 0) { 289*7c478bd9Sstevel@tonic-gate (void)fclose(pvt->sv.fp); 290*7c478bd9Sstevel@tonic-gate pvt->sv.fp = NULL; 291*7c478bd9Sstevel@tonic-gate } 292*7c478bd9Sstevel@tonic-gate } 293*7c478bd9Sstevel@tonic-gate 294*7c478bd9Sstevel@tonic-gate static struct servent * 295*7c478bd9Sstevel@tonic-gate sv_next(struct irs_sv *this) { 296*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 297*7c478bd9Sstevel@tonic-gate 298*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 299*7c478bd9Sstevel@tonic-gate if (pvt->dbh == NULL && pvt->sv.fp == NULL) 300*7c478bd9Sstevel@tonic-gate #else 301*7c478bd9Sstevel@tonic-gate if (pvt->sv.fp == NULL) 302*7c478bd9Sstevel@tonic-gate #endif 303*7c478bd9Sstevel@tonic-gate sv_rewind(this); 304*7c478bd9Sstevel@tonic-gate 305*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 306*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) { 307*7c478bd9Sstevel@tonic-gate DBT key, data; 308*7c478bd9Sstevel@tonic-gate 309*7c478bd9Sstevel@tonic-gate while ((*pvt->dbh->seq)(pvt->dbh, &key, &data, pvt->dbf) == 0){ 310*7c478bd9Sstevel@tonic-gate pvt->dbf = R_NEXT; 311*7c478bd9Sstevel@tonic-gate if (((char *)key.data)[0]) 312*7c478bd9Sstevel@tonic-gate continue; 313*7c478bd9Sstevel@tonic-gate return (sv_db_rec(&pvt->sv, &key, &data)); 314*7c478bd9Sstevel@tonic-gate } 315*7c478bd9Sstevel@tonic-gate } 316*7c478bd9Sstevel@tonic-gate #endif 317*7c478bd9Sstevel@tonic-gate 318*7c478bd9Sstevel@tonic-gate if (pvt->sv.fp == NULL) 319*7c478bd9Sstevel@tonic-gate return (NULL); 320*7c478bd9Sstevel@tonic-gate return (irs_lclsv_fnxt(&pvt->sv)); 321*7c478bd9Sstevel@tonic-gate } 322*7c478bd9Sstevel@tonic-gate 323*7c478bd9Sstevel@tonic-gate static void 324*7c478bd9Sstevel@tonic-gate sv_minimize(struct irs_sv *this) { 325*7c478bd9Sstevel@tonic-gate struct pvt *pvt = (struct pvt *)this->private; 326*7c478bd9Sstevel@tonic-gate 327*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 328*7c478bd9Sstevel@tonic-gate if (pvt->dbh != NULL) { 329*7c478bd9Sstevel@tonic-gate (*pvt->dbh->close)(pvt->dbh); 330*7c478bd9Sstevel@tonic-gate pvt->dbh = NULL; 331*7c478bd9Sstevel@tonic-gate } 332*7c478bd9Sstevel@tonic-gate #endif 333*7c478bd9Sstevel@tonic-gate if (pvt->sv.fp != NULL) { 334*7c478bd9Sstevel@tonic-gate (void)fclose(pvt->sv.fp); 335*7c478bd9Sstevel@tonic-gate pvt->sv.fp = NULL; 336*7c478bd9Sstevel@tonic-gate } 337*7c478bd9Sstevel@tonic-gate } 338*7c478bd9Sstevel@tonic-gate 339*7c478bd9Sstevel@tonic-gate /* Quasipublic. */ 340*7c478bd9Sstevel@tonic-gate 341*7c478bd9Sstevel@tonic-gate struct servent * 342*7c478bd9Sstevel@tonic-gate irs_lclsv_fnxt(struct lcl_sv *sv) { 343*7c478bd9Sstevel@tonic-gate char *p, *cp, **q; 344*7c478bd9Sstevel@tonic-gate 345*7c478bd9Sstevel@tonic-gate again: 346*7c478bd9Sstevel@tonic-gate if ((p = fgets(sv->line, BUFSIZ, sv->fp)) == NULL) 347*7c478bd9Sstevel@tonic-gate return (NULL); 348*7c478bd9Sstevel@tonic-gate if (*p == '#') 349*7c478bd9Sstevel@tonic-gate goto again; 350*7c478bd9Sstevel@tonic-gate sv->serv.s_name = p; 351*7c478bd9Sstevel@tonic-gate while (*p && *p != '\n' && *p != ' ' && *p != '\t' && *p != '#') 352*7c478bd9Sstevel@tonic-gate ++p; 353*7c478bd9Sstevel@tonic-gate if (*p == '\0' || *p == '#' || *p == '\n') 354*7c478bd9Sstevel@tonic-gate goto again; 355*7c478bd9Sstevel@tonic-gate *p++ = '\0'; 356*7c478bd9Sstevel@tonic-gate while (*p == ' ' || *p == '\t') 357*7c478bd9Sstevel@tonic-gate p++; 358*7c478bd9Sstevel@tonic-gate if (*p == '\0' || *p == '#' || *p == '\n') 359*7c478bd9Sstevel@tonic-gate goto again; 360*7c478bd9Sstevel@tonic-gate sv->serv.s_port = htons((u_short)strtol(p, &cp, 10)); 361*7c478bd9Sstevel@tonic-gate if (cp == p || (*cp != '/' && *cp != ',')) 362*7c478bd9Sstevel@tonic-gate goto again; 363*7c478bd9Sstevel@tonic-gate p = cp + 1; 364*7c478bd9Sstevel@tonic-gate sv->serv.s_proto = p; 365*7c478bd9Sstevel@tonic-gate 366*7c478bd9Sstevel@tonic-gate q = sv->serv.s_aliases = sv->serv_aliases; 367*7c478bd9Sstevel@tonic-gate 368*7c478bd9Sstevel@tonic-gate while (*p && *p != '\n' && *p != ' ' && *p != '\t' && *p != '#') 369*7c478bd9Sstevel@tonic-gate ++p; 370*7c478bd9Sstevel@tonic-gate 371*7c478bd9Sstevel@tonic-gate while (*p == ' ' || *p == '\t') { 372*7c478bd9Sstevel@tonic-gate *p++ = '\0'; 373*7c478bd9Sstevel@tonic-gate while (*p == ' ' || *p == '\t') 374*7c478bd9Sstevel@tonic-gate ++p; 375*7c478bd9Sstevel@tonic-gate if (*p == '\0' || *p == '#' || *p == '\n') 376*7c478bd9Sstevel@tonic-gate break; 377*7c478bd9Sstevel@tonic-gate if (q < &sv->serv_aliases[IRS_SV_MAXALIASES - 1]) 378*7c478bd9Sstevel@tonic-gate *q++ = p; 379*7c478bd9Sstevel@tonic-gate while (*p && *p != '\n' && *p != ' ' && *p != '\t' && *p != '#') 380*7c478bd9Sstevel@tonic-gate ++p; 381*7c478bd9Sstevel@tonic-gate } 382*7c478bd9Sstevel@tonic-gate 383*7c478bd9Sstevel@tonic-gate *p = '\0'; 384*7c478bd9Sstevel@tonic-gate *q = NULL; 385*7c478bd9Sstevel@tonic-gate return (&sv->serv); 386*7c478bd9Sstevel@tonic-gate } 387*7c478bd9Sstevel@tonic-gate 388*7c478bd9Sstevel@tonic-gate /* Private. */ 389*7c478bd9Sstevel@tonic-gate 390*7c478bd9Sstevel@tonic-gate #ifdef IRS_LCL_SV_DB 391*7c478bd9Sstevel@tonic-gate static struct servent * 392*7c478bd9Sstevel@tonic-gate sv_db_rec(struct lcl_sv *sv, DBT *key, DBT *data) { 393*7c478bd9Sstevel@tonic-gate char *p, **q; 394*7c478bd9Sstevel@tonic-gate int n; 395*7c478bd9Sstevel@tonic-gate 396*7c478bd9Sstevel@tonic-gate p = data->data; 397*7c478bd9Sstevel@tonic-gate p[data->size - 1] = '\0'; /* should be, but we depend on it */ 398*7c478bd9Sstevel@tonic-gate 399*7c478bd9Sstevel@tonic-gate if (((char *)key->data)[0] == '\0') { 400*7c478bd9Sstevel@tonic-gate if (key->size < sizeof(u_short)*2 || data->size < 2) 401*7c478bd9Sstevel@tonic-gate return (NULL); 402*7c478bd9Sstevel@tonic-gate sv->serv.s_port = ((u_short *)key->data)[1]; 403*7c478bd9Sstevel@tonic-gate n = strlen(p) + 1; 404*7c478bd9Sstevel@tonic-gate if ((size_t)n > sizeof(sv->line)) { 405*7c478bd9Sstevel@tonic-gate n = sizeof(sv->line); 406*7c478bd9Sstevel@tonic-gate } 407*7c478bd9Sstevel@tonic-gate memcpy(sv->line, p, n); 408*7c478bd9Sstevel@tonic-gate sv->serv.s_name = sv->line; 409*7c478bd9Sstevel@tonic-gate if ((sv->serv.s_proto = strchr(sv->line, '/')) != NULL) 410*7c478bd9Sstevel@tonic-gate *(sv->serv.s_proto)++ = '\0'; 411*7c478bd9Sstevel@tonic-gate p += n; 412*7c478bd9Sstevel@tonic-gate data->size -= n; 413*7c478bd9Sstevel@tonic-gate } else { 414*7c478bd9Sstevel@tonic-gate if (data->size < sizeof(u_short) + 1) 415*7c478bd9Sstevel@tonic-gate return (NULL); 416*7c478bd9Sstevel@tonic-gate if (key->size > sizeof(sv->line)) 417*7c478bd9Sstevel@tonic-gate key->size = sizeof(sv->line); 418*7c478bd9Sstevel@tonic-gate ((char *)key->data)[key->size - 1] = '\0'; 419*7c478bd9Sstevel@tonic-gate memcpy(sv->line, key->data, key->size); 420*7c478bd9Sstevel@tonic-gate sv->serv.s_name = sv->line; 421*7c478bd9Sstevel@tonic-gate if ((sv->serv.s_proto = strchr(sv->line, '/')) != NULL) 422*7c478bd9Sstevel@tonic-gate *(sv->serv.s_proto)++ = '\0'; 423*7c478bd9Sstevel@tonic-gate sv->serv.s_port = *(u_short *)data->data; 424*7c478bd9Sstevel@tonic-gate p += sizeof(u_short); 425*7c478bd9Sstevel@tonic-gate data->size -= sizeof(u_short); 426*7c478bd9Sstevel@tonic-gate } 427*7c478bd9Sstevel@tonic-gate q = sv->serv.s_aliases = sv->serv_aliases; 428*7c478bd9Sstevel@tonic-gate while (data->size > 0 && q < &sv->serv_aliases[IRS_SV_MAXALIASES - 1]) { 429*7c478bd9Sstevel@tonic-gate 430*7c478bd9Sstevel@tonic-gate *q++ = p; 431*7c478bd9Sstevel@tonic-gate n = strlen(p) + 1; 432*7c478bd9Sstevel@tonic-gate data->size -= n; 433*7c478bd9Sstevel@tonic-gate p += n; 434*7c478bd9Sstevel@tonic-gate } 435*7c478bd9Sstevel@tonic-gate *q = NULL; 436*7c478bd9Sstevel@tonic-gate return (&sv->serv); 437*7c478bd9Sstevel@tonic-gate } 438*7c478bd9Sstevel@tonic-gate #endif 439